/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6C5CE7;
            --primary-dark: #5A4BD1;
            --primary-light: #A29BFE;
            --secondary: #FD79A8;
            --accent: #00CEC9;
            --bg: #0F0F1A;
            --bg-alt: #1A1A2E;
            --bg-card: #1E1E36;
            --bg-dark: #0A0A14;
            --text: #F0F0F5;
            --text-muted: #9B9BB5;
            --text-light: #C8C8E0;
            --border: #2D2D4A;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.3);
            --shadow-glow: 0 0 40px rgba(108, 92, 231, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        a:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 4px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
        }
        h1 {
            font-size: clamp(2rem, 5vw, 3.6rem);
        }
        h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.6rem);
        }
        h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.6rem);
        }
        p {
            color: var(--text-light);
            margin-bottom: 1rem;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-dark {
            background: var(--bg-dark);
        }
        .section-title {
            text-align: center;
            margin-bottom: 16px;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 48px auto;
            font-size: 1.1rem;
        }
        .text-gradient {
            background: linear-gradient(135deg, var(--primary-light), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(108, 92, 231, 0.2);
            color: var(--primary-light);
            border: 1px solid rgba(108, 92, 231, 0.3);
            letter-spacing: 0.3px;
        }
        .badge-hot {
            background: rgba(253, 121, 168, 0.2);
            color: var(--secondary);
            border-color: rgba(253, 121, 168, 0.3);
        }
        .badge-new {
            background: rgba(0, 206, 201, 0.2);
            color: var(--accent);
            border-color: rgba(0, 206, 201, 0.3);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
            line-height: 1.2;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 20px rgba(108, 92, 231, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(108, 92, 231, 0.5);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text);
            border: 1px solid var(--border);
            backdrop-filter: blur(8px);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: var(--primary-light);
            color: var(--text);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary-light);
            border: 2px solid var(--primary-light);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 0.9rem;
        }
        .btn .fa-solid,
        .btn .fa-regular {
            font-size: 0.9em;
        }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(15, 15, 26, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(45, 45, 74, 0.4);
            transition: var(--transition);
        }
        .header.scrolled {
            background: rgba(15, 15, 26, 0.95);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text);
            text-decoration: none;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--text);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            font-weight: 900;
        }
        .logo-text {
            background: linear-gradient(135deg, var(--text), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* 搜索框 (导航中心) */
        .nav-search {
            flex: 1;
            max-width: 520px;
            margin: 0 16px;
            position: relative;
        }
        .nav-search .search-form {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 0 8px 0 20px;
            transition: var(--transition);
        }
        .nav-search .search-form:focus-within {
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.1);
            box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.15);
        }
        .nav-search .search-form input {
            flex: 1;
            padding: 10px 0;
            background: transparent;
            color: var(--text);
            font-size: 0.95rem;
            min-width: 0;
        }
        .nav-search .search-form input::placeholder {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .nav-search .search-form button {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .nav-search .search-form button:hover {
            background: var(--primary-dark);
            transform: scale(1.05);
        }
        .nav-search .search-form button i {
            font-size: 0.9rem;
        }

        /* 导航链接 */
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-links a {
            padding: 8px 18px;
            border-radius: 50px;
            color: var(--text-light);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--text);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-links a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 16px rgba(108, 92, 231, 0.3);
        }
        .nav-links a.active:hover {
            background: var(--primary-dark);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text);
            font-size: 1.3rem;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            flex-shrink: 0;
            transition: var(--transition);
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: calc(var(--header-h) + 40px) 24px 80px;
            position: relative;
            overflow: hidden;
            background: var(--bg-dark);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.3;
            z-index: 0;
            pointer-events: none;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, transparent 0%, var(--bg-dark) 80%);
            z-index: 1;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 20px;
            border-radius: 50px;
            background: rgba(108, 92, 231, 0.15);
            border: 1px solid rgba(108, 92, 231, 0.25);
            color: var(--primary-light);
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero h1 {
            font-size: clamp(2.4rem, 6vw, 4.2rem);
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #fff 40%, var(--primary-light) 70%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: clamp(1rem, 2vw, 1.25rem);
            color: var(--text-light);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            margin-bottom: 48px;
        }
        .hero-search {
            max-width: 560px;
            margin: 0 auto;
        }
        .hero-search .search-form {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 4px 4px 4px 24px;
            transition: var(--transition);
            backdrop-filter: blur(8px);
        }
        .hero-search .search-form:focus-within {
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.1);
            box-shadow: 0 0 0 6px rgba(108, 92, 231, 0.12), 0 8px 40px rgba(108, 92, 231, 0.08);
        }
        .hero-search .search-form input {
            flex: 1;
            padding: 16px 0;
            background: transparent;
            color: var(--text);
            font-size: 1.05rem;
            min-width: 0;
        }
        .hero-search .search-form input::placeholder {
            color: var(--text-muted);
        }
        .hero-search .search-form button {
            padding: 14px 32px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .hero-search .search-form button:hover {
            transform: scale(1.02);
            box-shadow: 0 8px 30px rgba(108, 92, 231, 0.4);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            justify-content: center;
            margin-top: 48px;
            padding-top: 40px;
            border-top: 1px solid rgba(45, 45, 74, 0.4);
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat .num {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            display: block;
        }
        .hero-stat .label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== 特色板块 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 28px;
            margin-top: 16px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 28px;
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: rgba(108, 92, 231, 0.3);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 54px;
            height: 54px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
            background: rgba(108, 92, 231, 0.15);
            color: var(--primary-light);
        }
        .feature-card h3 {
            margin-bottom: 12px;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* ===== 分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }
        .category-card {
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border);
            transition: var(--transition);
            text-decoration: none;
            color: inherit;
            display: block;
            position: relative;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: rgba(108, 92, 231, 0.3);
            color: inherit;
        }
        .category-card .card-img {
            height: 200px;
            background: var(--bg-alt);
            position: relative;
            overflow: hidden;
        }
        .category-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .category-card:hover .card-img img {
            transform: scale(1.05);
        }
        .category-card .card-img .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, var(--bg-card) 0%, transparent 60%);
        }
        .category-card .card-body {
            padding: 24px;
        }
        .category-card .card-body .badge {
            margin-bottom: 12px;
        }
        .category-card .card-body h3 {
            margin-bottom: 8px;
        }
        .category-card .card-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        .category-card .card-footer {
            padding: 16px 24px;
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .category-card .card-footer i {
            transition: var(--transition);
        }
        .category-card:hover .card-footer i {
            transform: translateX(6px);
            color: var(--primary-light);
        }

        /* ===== 最新资讯 (CMS) ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 28px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
            text-decoration: none;
            color: inherit;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
            border-color: rgba(108, 92, 231, 0.25);
            color: inherit;
        }
        .news-card .card-img {
            height: 200px;
            overflow: hidden;
            background: var(--bg-alt);
            position: relative;
        }
        .news-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .news-card:hover .card-img img {
            transform: scale(1.05);
        }
        .news-card .card-img .badge {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: rgba(15, 15, 26, 0.8);
            backdrop-filter: blur(8px);
            border-color: rgba(255, 255, 255, 0.1);
        }
        .news-card .card-body {
            padding: 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-body .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .news-card .card-body .meta i {
            margin-right: 4px;
        }
        .news-card .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .card-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .card-body .read-more {
            margin-top: 16px;
            color: var(--primary-light);
            font-weight: 500;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .news-card .card-body .read-more i {
            transition: var(--transition);
            font-size: 0.8rem;
        }
        .news-card:hover .card-body .read-more i {
            transform: translateX(4px);
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
            color: var(--text-muted);
        }
        .news-empty i {
            font-size: 2.4rem;
            margin-bottom: 16px;
            opacity: 0.5;
            display: block;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 28px;
            text-align: center;
        }
        .stat-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 20px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
            border-color: rgba(108, 92, 231, 0.2);
        }
        .stat-item .num {
            font-size: 2.8rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary-light), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: block;
            line-height: 1.2;
        }
        .stat-item .label {
            color: var(--text-muted);
            font-size: 1rem;
            margin-top: 8px;
            display: block;
        }

        /* ===== 流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
        }
        .step-card::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 16px rgba(108, 92, 231, 0.3);
        }
        .step-card .step-icon {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 16px;
            margin-top: 8px;
        }
        .step-card h3 {
            margin-bottom: 10px;
            font-size: 1.15rem;
        }
        .step-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(108, 92, 231, 0.2);
        }
        .faq-question {
            width: 100%;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text);
            background: transparent;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-question .faq-icon {
            transition: var(--transition);
            flex-shrink: 0;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary-light);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-alt);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(108, 92, 231, 0.08), transparent 70%);
            pointer-events: none;
        }
        .cta-box {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
            padding: 20px 0;
        }
        .cta-box h2 {
            margin-bottom: 16px;
        }
        .cta-box p {
            color: var(--text-muted);
            font-size: 1.1rem;
            margin-bottom: 32px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 1rem;
            margin-bottom: 18px;
            color: var(--text);
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: var(--transition);
            font-size: 0.95rem;
        }
        .footer-social a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 900px) {
            .nav-search {
                max-width: 320px;
            }
            .hero h1 {
                font-size: clamp(2rem, 5vw, 3rem);
            }
            .news-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 0 16px;
                gap: 12px;
            }
            .nav-search {
                display: none;
            }
            .nav-links {
                display: none;
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(15, 15, 26, 0.98);
                backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 6px;
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 20px;
                border-radius: var(--radius-sm);
            }
            .nav-links a.active {
                background: rgba(108, 92, 231, 0.2);
                color: var(--primary-light);
                box-shadow: none;
            }
            .menu-toggle {
                display: flex;
            }
            .hero {
                padding: calc(var(--header-h) + 24px) 16px 60px;
                min-height: 90vh;
            }
            .hero-search .search-form {
                flex-direction: column;
                background: transparent;
                border: none;
                padding: 0;
                gap: 12px;
            }
            .hero-search .search-form input {
                width: 100%;
                padding: 16px 20px;
                background: rgba(255, 255, 255, 0.06);
                border: 1px solid var(--border);
                border-radius: 50px;
            }
            .hero-search .search-form button {
                width: 100%;
                justify-content: center;
                padding: 16px 32px;
            }
            .hero-stats {
                gap: 24px;
                padding-top: 28px;
            }
            .hero-stat .num {
                font-size: 1.6rem;
            }
            .section {
                padding: 56px 0;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .num {
                font-size: 2rem;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .header-inner {
                padding: 0 12px;
                gap: 8px;
            }
            .logo {
                font-size: 1.15rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 0.95rem;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item {
                padding: 24px 12px;
            }
            .stat-item .num {
                font-size: 1.6rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .news-card .card-img {
                height: 160px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }
            .cta-box h2 {
                font-size: 1.5rem;
            }
            .footer {
                padding: 40px 0 20px;
            }
        }
        @media (min-width: 769px) {
            .nav-links {
                display: flex !important;
            }
            .menu-toggle {
                display: none !important;
            }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --primary-bg: #eff6ff;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --bg: #ffffff;
            --bg-alt: #f8fafc;
            --bg-card: #ffffff;
            --text: #0f172a;
            --text-weak: #64748b;
            --text-inverse: #ffffff;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.10);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --transition: 0.25s ease;
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
            --space-section: 80px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text);
            background: var(--bg);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header & Nav ===== */
        .header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: var(--header-h);
            display: flex;
            align-items: center;
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            font-weight: 700;
            font-size: 18px;
        }
        .logo-text {
            font-weight: 700;
            font-size: 20px;
            color: var(--text);
            letter-spacing: -0.3px;
        }
        .logo:hover .logo-text {
            color: var(--primary);
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 24px;
            flex: 1;
            justify-content: flex-end;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 15px;
            color: var(--text-weak);
            transition: background var(--transition), color var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-links a.active {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 0 16px;
            min-width: 200px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }
        .search-box i {
            color: var(--text-weak);
            font-size: 15px;
            margin-right: 8px;
        }
        .search-box input {
            background: transparent;
            border: none;
            padding: 10px 0;
            font-size: 14px;
            color: var(--text);
            width: 100%;
            min-width: 120px;
        }
        .search-box input::placeholder {
            color: var(--text-weak);
        }
        .nav-toggle {
            display: none;
            font-size: 24px;
            color: var(--text);
            padding: 4px;
            background: none;
            border: none;
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 24px 24px;
                box-shadow: var(--shadow);
                border-bottom: 1px solid var(--border);
                gap: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background: var(--primary-bg);
                border-radius: var(--radius-sm);
            }
            .nav-toggle {
                display: block;
            }
            .search-box {
                min-width: 140px;
                flex: 1;
                max-width: 240px;
            }
            .search-box input {
                min-width: 80px;
            }
            .header-right {
                gap: 12px;
            }
        }
        @media (max-width: 520px) {
            .logo-text {
                font-size: 16px;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
            .search-box {
                min-width: 100px;
            }
            .search-box input {
                min-width: 60px;
                font-size: 13px;
            }
            .header-right {
                gap: 8px;
            }
        }

        /* ===== Banner ===== */
        .banner {
            position: relative;
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            min-height: 260px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .banner-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .banner h1 {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            line-height: 1.2;
        }
        .banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 640px;
            margin: 0 auto;
        }
        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 24px;
        }
        .banner-tags span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .banner-tags span i {
            font-size: 13px;
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .banner {
                min-height: 200px;
            }
            .banner h1 {
                font-size: 28px;
            }
            .banner p {
                font-size: 15px;
            }
            .banner-tags span {
                font-size: 12px;
                padding: 6px 14px;
            }
        }
        @media (max-width: 520px) {
            .banner h1 {
                font-size: 22px;
            }
            .banner .container {
                padding-top: 32px;
                padding-bottom: 32px;
            }
        }

        /* ===== Section ===== */
        .section {
            padding: var(--space-section) 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.3px;
            margin-bottom: 10px;
        }
        .section-header p {
            font-size: 16px;
            color: var(--text-weak);
            max-width: 560px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .section {
                --space-section: 56px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .section-header p {
                font-size: 14px;
            }
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
            background: var(--bg-alt);
        }
        .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }
        .card-tags span {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 40px;
            font-size: 12px;
            font-weight: 500;
            background: var(--primary-bg);
            color: var(--primary);
        }
        .card-tags span.accent {
            background: #fef3c7;
            color: #b45309;
        }
        .card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .card h3 a {
            color: inherit;
        }
        .card h3 a:hover {
            color: var(--primary);
        }
        .card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
            font-size: 13px;
            color: var(--text-weak);
        }
        .card-meta i {
            margin-right: 4px;
        }
        .card-meta .read-more {
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .card-meta .read-more:hover {
            color: var(--primary-dark);
        }
        @media (max-width: 520px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
            .card-body {
                padding: 16px 18px 20px;
            }
            .card h3 {
                font-size: 16px;
            }
        }

        /* ===== Featured / Large Card ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .featured-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .featured-card .card-img {
            aspect-ratio: 16 / 9;
        }
        .featured-card .card-body {
            padding: 24px 26px 28px;
        }
        .featured-card h3 {
            font-size: 20px;
        }
        @media (max-width: 768px) {
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .featured-card .card-body {
                padding: 18px 20px 22px;
            }
            .featured-card h3 {
                font-size: 18px;
            }
        }

        /* ===== Category Filter ===== */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 40px;
        }
        .filter-bar button {
            padding: 8px 22px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 500;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text-weak);
            transition: all var(--transition);
        }
        .filter-bar button:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-bg);
        }
        .filter-bar button.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        @media (max-width: 520px) {
            .filter-bar button {
                padding: 6px 16px;
                font-size: 13px;
            }
        }

        /* ===== Game Categories ===== */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 16px;
        }
        .cat-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            color: var(--text);
            font-weight: 500;
        }
        .cat-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .cat-item i {
            font-size: 20px;
            color: var(--primary);
            width: 28px;
            text-align: center;
        }
        @media (max-width: 520px) {
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cat-item {
                padding: 12px 14px;
                font-size: 14px;
            }
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item h3 {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item p {
            font-size: 14px;
            color: var(--text-weak);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stat-item h3 {
                font-size: 28px;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-item h3 {
                font-size: 24px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
            background: none;
            text-align: left;
            gap: 12px;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: var(--bg-alt);
        }
        .faq-question i {
            font-size: 18px;
            color: var(--text-weak);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }
        @media (max-width: 520px) {
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 14px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 64px 0;
            text-align: center;
            color: #fff;
            border-radius: var(--radius-lg);
            margin: 0 24px;
        }
        .cta .container {
            max-width: 640px;
        }
        .cta h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta p {
            font-size: 16px;
            opacity: 0.85;
            margin-bottom: 28px;
        }
        .cta .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 40px;
            font-size: 16px;
            font-weight: 600;
            background: #fff;
            color: var(--primary);
            transition: all var(--transition);
        }
        .cta .btn:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
        }
        @media (max-width: 768px) {
            .cta {
                padding: 40px 16px;
                margin: 0 16px;
                border-radius: var(--radius);
            }
            .cta h2 {
                font-size: 24px;
            }
            .cta p {
                font-size: 14px;
            }
            .cta .btn {
                padding: 12px 28px;
                font-size: 14px;
            }
        }

        /* ===== Pagination ===== */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 48px;
            flex-wrap: wrap;
        }
        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            background: var(--bg);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .pagination a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-bg);
        }
        .pagination .active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .pagination .disabled {
            opacity: 0.4;
            pointer-events: none;
        }
        @media (max-width: 520px) {
            .pagination a,
            .pagination span {
                width: 36px;
                height: 36px;
                font-size: 13px;
            }
        }

        /* ===== Footer ===== */
        .footer {
            background: #0f172a;
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 0;
            margin-top: 80px;
        }
        .footer .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            display: inline-flex;
            margin-bottom: 14px;
        }
        .footer-brand .logo-icon {
            background: var(--primary-light);
        }
        .footer-brand .logo-text {
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px 0 32px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition);
        }
        .footer-social a:hover {
            color: #fff;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer {
                padding-top: 40px;
                margin-top: 56px;
            }
        }
        @media (max-width: 520px) {
            .footer .container {
                padding: 0 16px;
            }
            .footer-col h4 {
                font-size: 15px;
            }
        }

        /* ===== Mobile Nav Toggle ===== */
        .nav-toggle:focus-visible,
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== Smooth extra ===== */
        .text-center {
            text-align: center;
        }
        .mt-8 {
            margin-top: 32px;
        }
        .gap-8 {
            gap: 32px;
        }

        /* ===== Utility ===== */
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 40px;
            font-size: 12px;
            font-weight: 500;
            background: var(--primary-bg);
            color: var(--primary);
        }
        .badge.accent {
            background: #fef3c7;
            color: #b45309;
        }
        .badge.green {
            background: #ecfdf5;
            color: #047857;
        }
        .divider {
            width: 100%;
            height: 1px;
            background: var(--border);
            margin: 40px 0;
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6c5ce7;
            --primary-dark: #5a4bd1;
            --primary-light: #a29bfe;
            --primary-bg: rgba(108, 92, 231, 0.08);
            --secondary: #fd79a8;
            --secondary-dark: #e84393;
            --accent: #00cec9;
            --bg: #f8f9fe;
            --bg-card: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-dark2: #16213e;
            --text: #2d3436;
            --text-light: #636e72;
            --text-muted: #b2bec3;
            --border: #e0e0e0;
            --border-light: #f0f0f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow: 0 8px 30px rgba(108,92,231,0.10);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.08);
            --shadow-hover: 0 16px 48px rgba(108,92,231,0.18);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul { list-style: none; }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        input, textarea { font-family: inherit; font-size: 1rem; }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 头部 & 导航 ===== */
        .header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            box-shadow: 0 4px 12px rgba(108,92,231,0.3);
        }
        .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.3px;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-links a.active {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 4px 16px rgba(108,92,231,0.3);
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border-radius: 50px;
            padding: 0 16px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            min-width: 200px;
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(108,92,231,0.1);
        }
        .nav-search input {
            border: none;
            background: transparent;
            padding: 10px 8px;
            outline: none;
            width: 100%;
            font-size: 0.9rem;
            color: var(--text);
        }
        .nav-search input::placeholder { color: var(--text-muted); }
        .nav-search button {
            color: var(--text-muted);
            padding: 8px 4px;
            transition: var(--transition);
        }
        .nav-search button:hover { color: var(--primary); }
        .menu-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text);
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .menu-toggle:hover { background: var(--primary-bg); color: var(--primary); }

        /* ===== Hero (内页 Banner) ===== */
        .page-hero {
            padding: 60px 0 48px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark2) 100%);
            position: relative;
            overflow: hidden;
            min-height: 240px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .page-hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.3;
            letter-spacing: -0.5px;
        }
        .page-hero .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            color: rgba(255,255,255,0.7);
            font-size: 0.95rem;
        }
        .page-hero .breadcrumb a { color: rgba(255,255,255,0.7); }
        .page-hero .breadcrumb a:hover { color: #fff; }
        .page-hero .breadcrumb .sep { color: rgba(255,255,255,0.4); }
        .page-hero .breadcrumb .current { color: #fff; font-weight: 500; }
        .page-hero .meta-info {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            margin-top: 16px;
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            flex-wrap: wrap;
        }
        .page-hero .meta-info span { display: flex; align-items: center; gap: 6px; }
        .page-hero .meta-info i { font-size: 0.85rem; }
        .page-hero .meta-info .badge {
            background: var(--primary);
            color: #fff;
            padding: 2px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* ===== 文章主体 ===== */
        .article-main {
            padding: 48px 0 64px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 40px;
            border: 1px solid var(--border-light);
        }
        .article-content .content-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text);
        }
        .article-content .content-body p {
            margin-bottom: 1.2em;
        }
        .article-content .content-body h2,
        .article-content .content-body h3 {
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
        }
        .article-content .content-body h2 { font-size: 1.6rem; }
        .article-content .content-body h3 { font-size: 1.25rem; }
        .article-content .content-body ul,
        .article-content .content-body ol {
            margin: 0.8em 0;
            padding-left: 1.5em;
        }
        .article-content .content-body li {
            margin-bottom: 0.4em;
        }
        .article-content .content-body img {
            border-radius: var(--radius-sm);
            margin: 1.2em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-content .content-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 12px 20px;
            margin: 1.2em 0;
            background: var(--primary-bg);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
        }
        .article-content .content-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-content .content-body a:hover { color: var(--primary-dark); }
        .article-content .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }
        .article-content .tags .tag {
            padding: 4px 16px;
            border-radius: 50px;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .article-content .tags .tag:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== 侧边栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            border: 1px solid var(--border-light);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-bg);
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list li a {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            color: var(--text);
        }
        .sidebar-list li a:hover { color: var(--primary); }
        .sidebar-list li a .thumb {
            width: 64px;
            height: 48px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg);
        }
        .sidebar-list li a .info { flex: 1; }
        .sidebar-list li a .info .title {
            font-weight: 600;
            font-size: 0.9rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .sidebar-list li a .info .date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .sidebar-cta {
            text-align: center;
        }
        .sidebar-cta p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .sidebar-cta .btn {
            display: inline-block;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 16px rgba(108,92,231,0.3);
        }
        .sidebar-cta .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(108,92,231,0.4);
        }

        /* ===== 相关文章 ===== */
        .related-section {
            padding: 48px 0 64px;
            background: var(--bg);
        }
        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 36px;
            color: var(--text);
        }
        .related-section .section-title span {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .related-card .card-img {
            height: 180px;
            background: var(--bg);
            overflow: hidden;
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .related-card:hover .card-img img { transform: scale(1.05); }
        .related-card .card-body {
            padding: 20px;
        }
        .related-card .card-body .cat {
            font-size: 0.8rem;
            color: var(--primary);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .related-card .card-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin: 8px 0 10px;
            line-height: 1.4;
        }
        .related-card .card-body h4 a { color: var(--text); }
        .related-card .card-body h4 a:hover { color: var(--primary); }
        .related-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }
        .related-card .card-body .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* ===== 未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found-box i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-light);
            margin-bottom: 24px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }
        .not-found-box .btn {
            display: inline-block;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            transition: var(--transition);
        }
        .not-found-box .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.85);
            padding: 48px 0 0;
        }
        .footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .footer .footer-brand .logo { margin-bottom: 16px; }
        .footer .footer-brand .logo .logo-icon {
            width: 36px;
            height: 36px;
            font-size: 1rem;
        }
        .footer .footer-brand .logo .logo-text {
            font-size: 1.15rem;
            background: linear-gradient(135deg, #fff, rgba(255,255,255,0.7));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.6);
            max-width: 360px;
        }
        .footer .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer .footer-col ul li { margin-bottom: 10px; }
        .footer .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            transition: var(--transition);
        }
        .footer .footer-col ul li a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer .footer-bottom a:hover { color: var(--primary-light); }
        .footer .footer-social { display: flex; gap: 12px; }
        .footer .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.5);
            transition: var(--transition);
        }
        .footer .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-links { display: none; }
            .nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(16px);
                padding: 16px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-lg);
            }
            .nav-links.open a { width: 100%; text-align: center; padding: 12px; }
            .menu-toggle { display: block; }
            .nav-search { min-width: 140px; }
            .page-hero { padding: 40px 0 32px; min-height: 200px; }
            .page-hero h1 { font-size: 1.6rem; }
            .page-hero .meta-info { gap: 12px; font-size: 0.85rem; }
            .article-content { padding: 24px; }
            .article-content .content-body { font-size: 1rem; }
            .related-grid { grid-template-columns: 1fr; }
            .footer .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer .footer-bottom { flex-direction: column; text-align: center; }
            .container { padding: 0 16px; }
        }
        @media (max-width: 520px) {
            .header .container { gap: 8px; }
            .nav-search { min-width: 100px; }
            .nav-search input { width: 80px; }
            .logo-text { font-size: 1.05rem; }
            .page-hero h1 { font-size: 1.3rem; }
            .article-content { padding: 16px; }
            .sidebar-card { padding: 20px; }
        }